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The figure shows a conducting ring of ra...

The figure shows a conducting ring of radius `R`. A uniform steady magnetic field `B` lies perpendicular to the plane of the ring a circular region `r (lt R)`. If the resistance per unit length of the ring is `lamda`, then the current induced in the ring when its radius gets doubled is

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PHYSICS GALAXY - ASHISH ARORA-ELECTROMAGNETIC INDUCTION AND ALTERNATING CURRENT-Conceptual MCQs
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